Home / 118,977.63-178,228.45-71,566.55

Finding the Fourth Proportional to 118,977.63, 178,228.45 and 71,566.55

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Solution

The fourth proportional to 118,977.63, 178,228.45 and 71,566.55 is: 107,206.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,977.63 : 178,228.45 = 71,566.55 : x
  2. Step 2: Convert to fraction form
    118,977.63/178,228.45 = 71,566.55/x
  3. Step 3: Cross multiply
    118,977.63x = 178,228.45 × 71,566.55
  4. Step 4: Simplify right side
    118,977.63x = 12,755,196,147.56
  5. Step 5: Solve for x
    x = 12,755,196,147.56/118,977.63
  6. Step 6: Final answer
    x = 107,206.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.